X + 9 <4x plz awser​

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way